Derived Sérsic index of the dust-free images of the bulge for bulges produced with volume stellar emissivities described by (deprojected) Sérsic functions with different Sérsic indices. The symbols represent the measurements while the solid line are polynomial fits to the measurements. From left to right, the plots correspond to the bulge Sérsic index values , and 8.0. The black curves correspond to bulges truncated at three effective radii while the red curves denote bulges truncated at ten effective radii.